Splittable fluid sample collector

ABSTRACT

A splittable fluid sample collector for dividing a fluid sample into two or more portions, includes at least first and second fluid collector portions detachably connected to one another, each of the fluid collector portions including a handle and an absorbent sample pad affixed to an end of the handle. Further, a fluid sampling apparatus includes the aforementioned splittable fluid sample collector, at least one container and a closure for the container. Still further, a method for splitting a fluid sample including providing the aforementioned splittable fluid sample collector, collecting a fluid sample with the absorbent sample pads of the splittable fluid sample collector and splitting the first and second fluid collector portions of the splittable fluid sample collector from one another.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a divisional of U.S. patent application Ser. No.14/932,718, filed Nov. 4, 2015. The entire disclosure of U.S. patentapplication Ser. No. 14/932,718 is incorporated herein by reference.

FIELD

The disclosure relates to fluid sampling. More particularly, thedisclosure relates to a splittable fluid sample collector for a fluidsampling apparatus which collects and stores a fluid sample, thesplittable fluid sample collector being splittable into two or morefluid collector portions each having an absorbent sample pad absorbedwith a portion of the fluid sample.

BACKGROUND

Body fluids have long been used to diagnostically test and monitor forvarious biochemical and/or physiological conditions of a person's body.Typically, blood and urine samples are used to analyze and determinevarious conditions of the body.

More recently, oral fluids or saliva have been used to analyze andprovide valuable information regarding various bodily conditions. Forexample, saliva may be used for diagnostically testing an individual fora variety of medical conditions or drug use including, withoutlimitation, hepatitis, HIV, nicotine and cocaine. Clinics for oncology,neurology, infertility, allergy, orthopedic and pain typically usesamples of saliva for such testing.

The use of saliva as a diagnostic test medium can be more desirable thanblood because saliva is readily obtained without the use of intrusivesampling methods, such as needles and syringes. Saliva testing can alsobe more desirable than urine testing because saliva sampling can beeasily monitored to ensure that the sample has been obtained from theperson of interest.

Devices designed for sampling saliva and other fluids may use anabsorbent collection pad or member to absorb a fluid specimen. Since thediagnostic test may need to be repeated to adequately identify or verifya condition, at least a second fluid sample may be required. Currently,this may require a technician to obtain a second fluid sample from theperson using a second sampling device, which increases the cost, time,and inconvenience of sampling.

Accordingly, a device, apparatus, and method are needed, which reduce oreliminate the need for obtaining multiple fluid samples.

SUMMARY

Disclosed herein is a splittable fluid sample collector for dividing afluid sample into two or more portions. The splittable fluid samplecollector may comprise, in various embodiments, at least first andsecond fluid collector portions detachably connected to one another,each of the fluid collector portions including a handle and an absorbentsample pad affixed to an end of the handle.

Further disclosed herein is a fluid sampling apparatus. The fluidsampling apparatus may comprise, in various embodiments, a container andthe above-described splittable fluid sample collector.

Further disclosed herein is a method for splitting a fluid samplecomprising providing the above-described splittable fluid samplecollector, collecting a fluid sample with the absorbent sample pads ofthe splittable fluid sample collector and splitting the first and secondfluid collector portions of the splittable fluid sample collector fromone another.

In some embodiments, the absorbent sample pads are arranged opposite oneanother.

In some embodiments, the absorbent sample pads at least partiallycontact one another.

In some embodiments, the handles are arranged opposite one another.

In some embodiments, the handles at least partially contact one another.

In some embodiments, the handles are detachably connected to one anotherwith one or more frictionally engaging connecting elements.

In some embodiments, the handles are detachably connected to one anotherwith one or more frangible welds or a frangible adhesive.

In some embodiments, the absorbent sample pads are connected to oneanother by one or more frangible elements.

In some embodiments, the one or more frangible elements comprise one ormore uncut portions of pad material.

The same reference numerals are used in the drawings to identify thesame or similar elements and structures in the various embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of an embodiment of a fluid samplingapparatus of the present disclosure.

FIG. 2 is a sectional elevational view of an illustrative embodiment ofa container of the fluid sampling apparatus of the present disclosure.

FIG. 3 is a perspective view of an illustrative embodiment of a closureof the fluid sampling apparatus of the present disclosure.

FIGS. 4A-4C are perspective views of an illustrative embodiment of asplittable fluid sample collector of the fluid sampling apparatus of thepresent disclosure, where FIG. 4A shows the collector prior tosplitting, FIG. 4B shows the splitting of the collector, and FIG. 4C,shows the collector after being split and separated into first andsecond fluid collector portions.

FIG. 5 is a plan view of the splittable fluid sample collector shown inFIGS. 4A-4C, illustrating a frangible element connecting absorbentsample pads of the collector prior to completion of the splittingprocess.

FIGS. 6A-6C are perspective views of another illustrative embodiment ofthe splittable fluid sample collector of the fluid sampling apparatus ofthe present disclosure, where FIG. 6A shows the collector prior tosplitting, FIG. 6B shows the splitting of the collector by a technicianor user, and FIG. 6C shows the collector after being split and separatedinto first and second fluid collector portions.

FIG. 7 is a perspective view of another illustrative embodiment of thesplittable fluid sample collector of the fluid sampling apparatus of thepresent disclosure.

DETAILED DESCRIPTION

FIG. 1 depicts an embodiment of a fluid sampling apparatus 10 forcollecting and storing a fluid sample, such as saliva, other body fluid,or a fluid other than a body fluid. As shown, the fluid samplingapparatus 10 may comprise one or more containers 12 each having aclosure 14, and a splittable fluid sample collector 16. The splittablefluid sample collector 16 is constructed so that a technician or usercan collect a single fluid sample from a person without touching thesample and then divide the fluid sample into two or more sampleportions.

Referring to FIG. 2, some embodiments of the container 12 may have atube-like configuration comprising a side wall 12 sw having a closed end12 c with a rim-like base 12 b and an open end 12 o disposed opposite tothe closed end 12 c. The base 12 b allows the container 12 to standup-right on a support surface. A sealing bead 12 sb may be provided onan inner side 12 iw of the side wall 12 sw, near its open end 12 o. Insome embodiments, the container 12 may contain a solution, such as abuffer solution, to maintain and/or stabilize the pH of the fluidsample.

Referring to FIG. 3, some embodiments of the closure 14 may include abody 14 b and a stopper member 14 s axially extending from the body 14b. The closure 14 may be used for closing the open end 12 o of thecontainer 12 (FIG. 1) and may be constructed to mechanically couple tothe open end 12 o of the container 12 so that the stopper member 14 senters the container 12 and engages the sealing bead 12 sb on the innersurface 12 iw of the container side wall 12 sw thereof in a hermeticmanner.

FIG. 4A-4C collectively illustrate the splittable fluid sample collector16 according to one embodiment of the present disclosure. As shown, thesplittable fluid sample collector 16 comprises first and second fluidcollector portions 16 a and 16 b arranged opposite one another anddetachably connected to one another so that the technician or user canobtain the fluid sample and then divide the fluid sample into two sampleportions by splitting and separating the first and second fluidcollector portions from one another. Each fluid collector portion 16 a,16 b may comprise an absorbent sample pad 18 a, 18 b and a handle 20 a,20 b. The handles 20 a, 20 b can be arranged opposite one another andcan at least partially or fully contact one another. The absorbentsample pads 18 a, 18 b can be arranged opposite one another and can atleast partially or fully contact one another. The absorbent sample pads,in embodiments of the fluid sample collector that comprise three or morefluid collector portions, can have one or more openings that allow thefluid sample to contact and be absorbed by the inner-most absorbentsample pads. The absorbent sample pads, in still other embodiments ofthe fluid sample collector, can be spaced from one another to allow thefluid sample to contact and be absorbed by the inner-most absorbentsample pads and/or the opposing inner surfaces of the pads. The handles20 a, 20 b can each include a finger gripping element 24 a, 24 b at afree first end 22 a, 22 b thereof and a receptacle member 28 a, 28 b atan opposite second end 26 a, 26 b thereof, for fixedly receiving andholding an end portion 19 a, 19 b of the absorbent sample pad 18 a, 18b. The finger gripping elements 24 a, 24 b allow the technician or userto manually grasp the collector 16 and/or split and separate the fluidcollector portions 16 a, 16 b from one another. In embodiments where thefluid sample to be taken is a saliva sample, the portions of theabsorbent sample pads 18 a, 18 b, which extend from the handles 20 a, 20b, may be sized and shaped in some embodiments to be comfortably placedin a mouth of a person to be sampled to absorb and thereby collect asample of saliva fluid therefrom for diagnostic testing. In suchembodiments, the portions of the absorbent sample pads 18 a, 18 bextending from the handles 20 a, 20 b can be shaped like a conventionaltongue depressor, as shown in FIGS. 4A-4C.

As shown in FIGS. 4B and 4C, the fluid collector portions 16 a, 16 b ofthe splittable fluid sample collector 16 can be detachably connected toone another with one or more pin-shape connecting elements 30 a providedon the handle 20 a of one of the fluid collector portions 16 a, whichfrictionally engage(s) or is (are) received in one or more correspondingaperture-shape connecting elements 30 b provided in the handle 20 b ofthe other fluid collector portion 16 b, when the fluid collectorportions 16 a, 16 b are detachably connected to one another prior tosplitting and separation. In other embodiments, the fluid collectorportions 16 a, 16 b can be detachably connected to one another with oneor more frangible welds formed on the handles 20 a, 20 b (not shown)using conventional plastic welding techniques. In still otherembodiments the fluid collector portions 16 a, 16 b can be detachablyconnected to one another with a frangible adhesive applied to opposingsurfaces of the handles 20 a, 20 b. Further, the absorbent sample pads18 a, 18 b, in some embodiments of the splittable fluid sample collector16, can also be connected to one another by an uncut portion ofabsorbent sample pad material 19, as illustrated in FIG. 5, which caneasily be torn or broken to completely separate the fluid collectorportions 16 a, 16 b from one another after (or before) sampling.

In the embodiment illustrated in FIGS. 4A-4C, the finger grippingelements 24 a, 24 b each have an ear-shape configuration that projectslaterally from their corresponding handle 20 a, 20 b at the first freeend 22 a, 22 b thereof. In another embodiment, as shown in FIGS. 6A-6C,the finger gripping elements 24 a′, 24 b′ of the splittable fluid samplecollector 16′ each have a flap-shape configuration that projects axiallyand at an angle from the free first end of 22 a, 22 b of theircorresponding handle 20 a, 20 b, so that when the fluid collectorportions 16 a, 16 b are connected to one another, the finger grippingelements 24 a′, 24 b′ diverge from one another.

The container 12, the handles 20 a, 20 b of the splittable fluid samplecollector 16, 16′ and/or the closure 14 may be formed from athermoplastic material or any other suitable material using conventionalplastic forming techniques. The absorbent sample pads 18 a, 18 b cancomprise a piece of filter paper or any other suitable material that iscapable of absorbing fluid such as saliva or any other desired fluid.

FIG. 7 illustrates another embodiment of the splittable fluid samplecollector 16″ according to the present disclosure. The splittable fluidsample collector 16″ is similar to the splittable fluid samplecollectors of FIGS. 4A-C and 6A-6C, except that it comprises three fluidcollector portions 16 a, 16 b, 16 c.

An illustrative embodiment of a fluid sampling method using the fluidsampling apparatus of the present disclosure will now be described withreference to FIGS. 1 and 6A-6C. One of ordinary skill in the art will ofcourse appreciate that the method is also applicable to the embodimentsof FIGS. 4A-4C and FIG. 7. For the purpose of illustration only, themethod will be described as it pertains to obtaining a salvia sample.One of ordinary skill in the art will of course recognize that themethod can also be used to obtain other types of bodily fluid samplesincluding but not limited to blood, urine, and sweat, and non-bodilyfluid samples including but not limited to well water, oil, and gascondensates. In the method, the technician or user grasps the splittablefluid sample collector 16 of FIG. 6A by the handles 20 a, 20 b (thefluid collector portions 16 a, 16 b are connected to one another) andplaces the absorbent sample pads 18 a, 18 b of the collector 16 into themouth of a person from whom it is desired to collect the saliva fluidsample from. Once the absorbent sample pads 18 a, 18 b have absorbed thefluid sample, the technician or user may grasp the collector 16 by thehandles 20 a, 20 b and remove the pads 18 a, 18 b from the person'smouth. If only one saliva fluid sample is desired, the technician oruser can place the splittable fluid sample collector 16 with the fluidcollector portions 16 a, 16 b connected to one another, into one of thecontainers 12 (pad end first) and close the container with the closure14 and save the splittable collector 16 for future testing. If the morethan one fluid sample is desired, the technician or user can split andseparate the fluid collector portions 16 a, 16 b of the splittable fluidsample collector 16, as shown in FIG. 6B, by grasping each of the fingergripping elements 24 a′, 24 b′ with two fingers of one of thetechnician's or user's hand and pulling the fluid collector portions 16a, 16 b apart from one another in the direction of arrows A and B tosplit and separate the fluid collector portions 16 a, 16 b from oneanother. Once separated from one another, as shown in FIG. 6C, the fluidcollector portions 16 a, 16 b can each be placed into their owncontainer 12 and the container 12 closed with a corresponding closure 14and saved for future testing.

In other embodiments of the method, the fluid collector portions 16 a,16 b of the splittable fluid sample collector 16 can be split andseparated from one another prior to use in collecting a fluid sample. Insuch embodiments, each of the fluid collector portions 16, 16 b can thenbe used separately to collect a fluid sample.

Although the fluid sampling apparatus and splittable fluid samplecollector of the disclosure have been described in terms of illustrativeembodiments, they are not limited thereto. Rather, the appended claimsshould be construed broadly, to comprise other variants and embodimentsof the fluid sampling apparatus and splittable collector, which may bemade by those skilled in the art without departing from the scope andrange of equivalents of the fluid sampling apparatus and the splittablefluid sample collector elements.

What is claimed is:
 1. A splittable fluid sample collector for dividinga fluid sample into two or more portions, the splittable fluid samplecollector comprising: a first fluid collector portion including a firsthandle and a first absorbent sample pad affixed to an end of the firsthandle; and a second fluid collector portion including a second handleand a second absorbent sample pad affixed to an end of the secondhandle; wherein the first and second fluid collector portions aredisposed opposite to each other in a face-to-face manner; wherein thefirst and second handles are detachably connected to each other with atleast one frictionally engaging connecting element, at least onefrangible weld, or a frangible adhesive; and wherein the first andsecond absorbent sample pads are separate and distinct from one anotherand at least partially contact one another.
 2. The splittable fluidsample collector according to claim 1, wherein the first and secondhandles are arranged opposite one another.
 3. The splittable fluidsample collector according to claim 1, wherein the first and secondhandles each includes a finger gripping element.
 4. The splittable fluidsample collector according to claim 3, wherein the finger grippingelements have an ear-shaped configuration.
 5. The splittable fluidsample collector according to claim 3, wherein the finger grippingelements have a flap-shape configuration.
 6. The splittable fluid samplecollector according to claim 1, wherein each of the first and secondabsorbent sample pads includes a first planar face surface, a secondplanar face surface, and a peripheral edge surface extending between thefirst and second planar face surfaces.
 7. The splittable fluid samplecollector according to claim 6, wherein the first and second planar facesurfaces of each of the first and second absorbent sample pads has awidth that is greater than a width of its peripheral edge surface. 8.The splittable fluid sample collector according to claim 7, wherein thefirst and second absorbent sample pads are arranged opposite one anotherso that one of the first and second planar face surfaces of the firstabsorbent sample pad faces one of the first and second planar facesurfaces of the second absorbent sample pad.
 9. The splittable fluidsample collector according to claim 7, wherein the peripheral edgesurfaces of the first and second absorbent sample pads face a samedirection.
 10. A fluid sampling apparatus comprising: a container; and asplittable fluid sample collector according to claim 1.